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Direct linkWorley, Bob – School Science Review, 2011
In 1984, a teacher was successfully prosecuted by the Health and Safety Executive. The case centred around chemically prepared hydrogen that was dried by bubbling it through concentrated sulfuric(VI) acid and then passed over hot copper(II) oxide. The procedure was often carried out quantitatively to find the mass of copper in a sample of…
Descriptors: Chemistry, Science Instruction, Science Laboratories, Scientific Principles
